I no longer have the new version Opera installed, so no screenshot. The problem only happens with the Nimbus gtk2 theme which has a highly styled scrollbar that tapers and curves at the ends. The new Opera displays a more typical scroll bar, unstyled but the correct color. But when I mouse-over the scrollbar, instead of highlighting... it just sort of disappears into a blob of speckled colors and random patches of yuck. The bar will still function, but is not distinguishable as a bar with any shape or size except for the border of the track surrounding it. This has happened a few times before during the past three years with some older versions of Opera, and maybe even once or twice with Firefox or Seamonkey. Usually the problem was fixed in the subsequent release. It will probably be fixed again, I hope.